JP2007111410A - Drum type washer/dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washer/dryer improved in drying function, effectively washing out lint or the like attached to the inside wall of a heat exchanger chamber, or the like in a rinsing process, improved in rinsing function, and reducing unevenness in rinsing. <P>SOLUTION: The drum type washer/dryer is provided with circulating water passages 22, 26, 27, and 28 for shower rinse; the heat exchanger chamber 55 storing a heat exchanging member 60 is provided adjacent to the upper part of the side peripheral surface of a water-receiving tank 6, and an exhaust port 53 communicating with the heat exchanger chamber 55 is provided in the side peripheral wall of the water-receiving tank 6. Therefore, drying function is improved and the rinsing efficiency is enhanced while effectively washing out, the lint or the like attached to the heat exchanging member 60 or the inside wall of the heat exchanger chamber 55 in the rinsing process. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum-type washing and drying machine that performs various processes such as washing, rinsing, and dewatering in a rotating drum having a rotating shaft in a horizontal direction or an oblique direction.

  FIG. 11 is a perspective view of a drum-type washing / drying machine in which the rotating shaft of the rotating drum is in the horizontal direction. The configuration of a conventional drum-type washing / drying machine will be described with reference to FIG.

  A water receiving tub 103 in which a rotating drum 102 having a large number of water draining small holes 101 formed on the outer periphery is rotatably disposed therein has a motor 104 for driving the rotating drum 102 fixed to an outer bottom portion thereof, and The suspension box is supported by a plurality of spring bodies (not shown) and a damper 106 so as to be swingable and swingable from an outer box 105 which is a main body of the washing and drying machine. The water receiving tank 103 is connected to a water supply hose 108 for supplying washing water from a water supply valve 107 at an upper portion thereof, and a drainage port 111 communicating with a drainage passage 110 through a drainage pump 109 is formed at a lower bottom portion. The rotary drum 102 has a protrusion 112 for stirring clothes inside thereof, and an opening 113 for taking in and out the clothes corresponds to a lid (not shown) disposed in the outer box 105 so as to be freely opened and closed. .

  A second opening 114 is formed at a position of the water receiving tank 103 corresponding to the opening 113 of the rotating drum 102 and a lid (not shown), and the second opening 114 and the opening of the front surface of the outer box 105 are formed. A packing member 115 made of a flexible material such as a substantially cylindrical rubber is disposed between the first and second plates 113. The packing member 115 is fixed in a watertight manner to the second opening 114 of the water receiving tank 103, and contacts the outer box 105 in a watertight manner when a lid (not shown) is closed.

  The control device 116 is disposed on the upper front surface of the outer box 105, controls the operation of the motor 104, the water supply valve 107, the drain pump 109, and the like, and inputs control means for sequentially controlling a series of steps such as washing, rinsing, and dehydration. Means and display means.

  The operation of the above configuration will be described. The lid (not shown) is opened, the laundry clothes are put into the rotating drum 102 and the power switch (not shown) is turned on. When the operation is started by operating (not shown), the water supply valve 107 operates to supply water, and when a predetermined water level is detected by a water level detecting means (not shown), the water supply is stopped and the motor 104 is driven. In the washing process, the rotary drum 102 rotates at a relatively low speed, and the clothes in the inside are lifted by the protrusions 112 and the like, dropped from an appropriate height, and washed by the impact force. Although the rotation of the rotating drum 102 depends on the shape of the protrusion 112, it is general to perform forward and reverse rotation in order to reduce tangling of clothing.

  When the washing process is completed, the washing water in the water receiving tub 103 is drained through the drain pump 109, and the process proceeds to the rinsing process. In the rinsing process, the movement of the rotating drum performs substantially the same operation as the washing process. Water rinsing is performed to operate the water supply valve 107 and the like. In the dehydration process, the rotating drum 102 is rotated at a high speed after draining, and the moisture of the laundry is centrifugally dehydrated. When the dehydration process is completed, the process proceeds to the drying process.

  In the drying process, as in the washing process, the rotating drum 102 is driven to stir the laundry in the rotating drum 102, and hot air heated by the blower 117 and the heater 118 is applied to the clothes in the rotating drum 102 from the outlet 119. Spray and heat and evaporate moisture contained in clothing. Further, the high-temperature air containing steam is sent into the heat exchanger 120 through the exhaust hose 120a, and the cooling water supplied into the heat exchanger 120 from the cooling water supply valve 121 through the cooling water hose 122. And is dehumidified by cooling and heat exchange. Further, the dehumidified air is heated again by the heater 118 and sent into the rotating drum 102 to dry the clothes. This forms a series of drying cycles.

In such a configuration, the yarn waste generated from the laundry during the drying process is likely to accumulate on the exhaust hose 120a, and when performing an operation to remove the yarn waste accumulated on the exhaust hose 120a, The amount of water supply in the stroke is increased, water is also allowed to enter the exhaust hose 120a below the water receiving tank 103, and lint and the like adhering in the exhaust hose 120a due to the water flow generated by the rotation of the rotating drum 102 in the rinse stroke. Wash away. Further, when the blower 117 is driven in accordance with this operation, the water level fluctuates due to the wind pressure, the scattering of water increases, and lint etc. are easily washed away (see, for example, Patent Document 1).
JP 11-333185 A

  However, in such a conventional drum-type washing and drying machine, the amount of water supplied in the rinsing process is increased, water enters the exhaust hose below the water receiving tank, and the water flow generated by the rotation of the rotating drum in the rinsing process Washing away lint etc. adhering in the exhaust hose leads to an increase in the amount of water used and an increase in washing time. Further, in order to improve the drying function in the drum type laundry dryer, in order to exhaust the air containing moisture from the laundry stored in the rotating drum and supply the dry warm air uniformly to the laundry, It is preferable that the exhaust from the receiving tank is on the upper side of the water receiving tank, and the air blowing into the water receiving tank is on the lower side of the water receiving tank. In such a drying function configuration, the exhaust port opens to the upper side of the water receiving tank, and the dehumidifying means is provided in the pipe line communicating therewith, thereby providing a compact and highly efficient dehumidifying means. In addition, the configuration in which the lint or the like attached to the dehumidifying means is washed away by water supply control or air blowing control in the rinsing process cannot be applied.

  The present invention solves the above-mentioned conventional problems, can improve the drying function, can prevent a decrease in the drying function due to the adhesion and accumulation of yarn waste, etc., and also has a cleaning power and an excessive performance An object of the present invention is to provide a drum-type washing / drying machine having a configuration and a control method capable of reducing the unevenness of rinsing without reducing the productivity and at a low manufacturing cost.

  In order to achieve the above object, the drum-type washing and drying machine of the present invention includes a cylindrical bottomed water receiving tub enclosed in a washing machine body and having a first opening for entering and exiting clothes, and rotating to the water receiving tub. A bottomed cylindrical rotary drum having a second opening that is freely provided and opens corresponding to the first opening, and a rotary shaft that is inclined in the horizontal direction or the horizontal direction, and rotationally drives the rotary drum. A motor; water supply means for supplying water into the water receiving tank; drainage means for draining washing water in the water receiving tank; blower means for sending air into the rotary drum; and the blower means and the rotary drum A heating means for heating the air blown by the blowing means, a dehumidifying means comprising a heat exchange member and a cooling water supply means for supplying cooling water to the heat exchange member, and from the rotating drum Drain between the water tank and the rotating drum A circulating air passage for blowing the air into the water receiving tank through the dehumidifying means, the air blowing means, and the heating means, and the inside of the water receiving tank is rotated with the rotation of the rotating drum provided in the water receiving tank. A water intake port through which washing water enters, a circulation water channel communicating with one end of the water intake port, a discharge port communicating with the other end of the circulation water channel and discharging the wash water into the rotating drum, the motor, water supply means, A control means for controlling each of the drainage means, the blower means, the heating means, the cooling water supply means, etc. to perform washing, rinsing, dehydration and the like, and the heat exchange member housing chamber containing the heat exchange member. In addition to being provided adjacent to the upper part of the water receiving tank side peripheral surface, an exhaust port communicating with the heat exchange member accommodation chamber is provided in the side peripheral wall of the water receiving tank.

  The drum type washing and drying machine of the present invention can improve the drying function, and in the drying process, lint generated from the laundry adheres to the heat exchange member, the inner wall of the heat exchange member accommodation chamber, and the like. In the rinsing process, the attached lint and the like can be washed away effectively, so that it is possible to prevent the drying function from being lowered due to the accumulated accumulation of lint and the like. At the same time, the washing water in the water receiving tub rotating with the rotation of the rotating drum without using a circulation pump or the like is taken into a water intake provided in the water receiving tub, and the washing water taken in from the water intake is discharged. By discharging the water into the rotating drum from the outlet, the washing water is sprinkled over the laundry to improve the cleaning power and rinsing performance, and the rinsing unevenness can be reduced. Since there is no need to provide a separate one, the washing time can be shortened, and the manufacturing cost can be kept low without reducing the productivity.

  A first aspect of the invention is a bottomed cylindrical water receiving tub that is included in a washing machine body and has a first opening for clothes entering and exiting, and is rotatably provided in the water receiving tub and corresponds to the first opening. A bottomed cylindrical rotary drum having a second opening that opens and a horizontal axis or a rotary shaft inclined from the horizontal direction, a motor that rotationally drives the rotary drum, and water supply that feeds water into the water receiving tank Means, draining means for draining the washing water in the water receiving tub, blowing means for sending wind into the rotating drum, and located between the blowing means and the rotating drum and blown by the blowing means. A heating means for heating the air, a dehumidifying means comprising a heat exchanging member and a cooling water supplying means for supplying cooling water to the heat exchanging member, and the rotating drum discharged between the water receiving tank and the rotating drum. Air dehumidifying means, blowing means, heating A circulation air passage that blows air into the water receiving tank through the steps, a water intake port that is provided in the water receiving tank and that rotates into the water receiving tank as the rotating drum rotates, and the water intake port. A circulating water channel that communicates with one end of the circulating water channel, a discharge port that communicates with the other end of the circulating water channel and discharges washing water into the rotating drum, the motor, the water supply unit, the draining unit, the blowing unit, the heating unit, and the cooling water supply Control means for controlling each means, etc. to perform each step such as washing, rinsing, dehydration, etc., and a heat exchange member containing chamber containing the heat exchange member adjacent to the upper part of the peripheral surface of the water receiving tank In addition, an exhaust port communicating with the heat exchange member accommodation chamber is provided on the side peripheral wall of the water receiving tank.

  According to this configuration, the exhaust from the water receiving tank is on the upper side of the water receiving tank, and the air blowing into the water receiving tank is on the lower side of the water receiving tank, so that the drying function can be improved, When the rotating drum rotates in the water receiving tank supplied with water, the water in the water receiving tank rotates on the inner surface of the side peripheral wall in the water receiving tank as the rotating drum rotates. The yarn waste that enters the heat exchange member housing chamber vigorously and adheres to the heat exchange member and the inner wall of the heat exchange member housing chamber from the laundry during the drying process is washed away by the water that enters the yarn, etc. It is possible to prevent the drying function from being deteriorated due to the deposition of deposits. At the same time, the washing water in the water receiving tub rotating with the rotation of the rotating drum is taken into a water intake provided in the water receiving tub, and the washing water taken from the water intake is taken into the rotating drum from the discharge outlet. By discharging, washing water is sprinkled on the laundry and circulated, so that the washing water contained in the laundry and the washing water inside and outside the rotating drum are actively circulated, and the washing power and rinsing performance Can be improved and cleaning unevenness can be reduced.

  According to a second aspect of the present invention, in the first aspect of the present invention, one of the upper end edge and the lower end edge of the exhaust port is positioned radially outward with respect to the other.

  According to this configuration, since either the upper end edge or the lower end edge of the exhaust port is positioned radially outward with respect to the other, water is heated from the edge side positioned radially outward via the exhaust port. The yarn waste that enters the exchange member storage chamber more vigorously and is generated from the laundry in the drying process and adheres to the heat exchange member and the inner wall of the heat exchange member storage chamber is washed away by the water that enters the yarn, and the yarn waste, etc. It is possible to more effectively prevent the drying function from being reduced due to the adhesion and deposition.

  According to a third invention, in the invention according to the first or second aspect, the heat exchange member accommodation chamber is formed integrally with the water receiving tank.

  According to this configuration, the distance from the exhaust port to the heat exchange member accommodating portion is shortened, and water easily flows into the dehumidifying means accommodating chamber from the water receiving tank through the exhaust port. The effect of washing out the water and the like is further increased, and the connection portion between the water receiving tank and the heat exchange member accommodation chamber becomes unnecessary, so there is no concern about water leakage from the portion.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the heat exchange member accommodation chamber includes a heat exchange member provided above the exhaust port, and the heat exchange member includes an upper accommodation chamber and a lower accommodation chamber. In this configuration, a substantially U-shaped path is formed.

  According to this configuration, in order to dehumidify the air having moisture during the drying process, it is possible to dehumidify using the two surfaces of the upper and lower surfaces of the heat exchange member, so that the dehumidifying performance is improved and the drying efficiency is improved. Moreover, since the heat exchange path is configured in a substantially U shape with the heat exchange member interposed therebetween, a compact configuration that effectively uses a limited space can be achieved.

  According to a fifth aspect of the present invention, in the invention according to the fourth aspect, a communication port is provided in a part of the side wall of the heat exchange member to connect the upper storage chamber and the lower storage chamber of the heat exchange member storage chamber. .

  According to this configuration, by supplying water also from the direction orthogonal to the flow of water to the upper storage room where water is difficult to reach due to the presence of a heat exchange member, turbulence is generated inside the upper storage room and the upper storage room The inner wall of the chamber can also be thoroughly cleaned.

  According to a sixth aspect of the present invention, in the first to fifth aspects of the present invention, the water supply means for supplying water into the water receiving tank and the inside of the water receiving tank are rotated in accordance with the rotation of the rotating drum provided in the water receiving tank. A water intake port through which washing water enters, a circulation water channel communicating with one end of the water intake port, a discharge port communicating with the other end of the circulation water channel and discharging the washing water into the rotating drum, At least in the rinsing process, the rinsing water supply control operation for controlling the water supply means to supply water to a predetermined water level in the water receiving tub, and rotating the rotating drum at a predetermined rotation speed to rotate the laundry by centrifugal force. A shower rinsing process by sticking to the inner peripheral wall and discharging washing water from the discharge port and a heat exchange member cleaning operation are performed simultaneously, and the rotation direction of the rotating drum is the upper edge and lower end of the exhaust port. Edge located radially outwardly of is one that was set to the upstream side of the water flow.

  According to this configuration, in the rinsing process, the water can surely enter the heat exchange member accommodation chamber through the exhaust port, so that the attached lint etc. are surely washed away by the entered water. It is possible to prevent the drying function from deteriorating due to the accumulation and accumulation of lint, etc., and at the same time, the washing water contained in the laundry and the washing water inside and outside the rotating drum are circulated at high speed, and the shower has a strong momentum. The cleaning power and rinsing performance can be improved, and the rinsing unevenness can be reduced. This also leads to shortening of the rinsing process time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a drum type washing and drying machine in an embodiment of the present invention. In FIG. 1, in a main body 1 of a drum type washing and drying machine, a bottomed cylindrical water receiving tub 6 is inclined downward from the front side to the back side of the main body 1 by a suspension structure (not shown). It is supported by. The water receiving tank 6 is composed of a water receiving tank main body 2 and a water receiving tank cover 3, and is connected and fixed in a watertight manner through the first packing member 4 at the connecting portion. The water receiving tub 6 rotatably supports a rotating drum 5 formed in a cylindrical shape with a bottom on the inner side so that its rotating shaft is inclined downward from the front side of the main body 1 toward the back side. .

  On the front side of the main body 1, a main body opening 1a for taking in and out the laundry is formed, and a door body 8 that covers the main body opening 1a so as to be freely opened and closed is provided.

  The water receiving tank cover 3 is provided with a water receiving tank cover opening (first opening) 3a at a position corresponding to the main body opening 1a, and the rotating drum 5 includes the main body opening 1a and the water receiving tank cover. A rotating drum opening 5a (second opening) is provided at a position corresponding to the opening 3a. The laundry is put into and out of the rotating drum 5 from the outside of the main body 1 through the main body opening 1a, the water receiving tank cover opening 3a, and the rotating drum opening 5a.

  The rotating drum 5 includes a rotating drum front surface portion 5b provided with a rotating drum opening 5a, a bottomed cylindrical barrel portion, and a rotating drum barrel portion 5c having a plurality of drain holes 5g and a rotation constituting the bottom portion. A plurality of stirring protrusions 5e are provided on the inner surface of the rotating drum body 5c, and are constituted by a motor 7 attached to the outside of the water receiving tank main body bottom 2c of the water receiving tank main body 2. It is rotationally driven and its rotational speed and left-right rotational direction are variable.

  One end of the first water supply hose 10a is connected to the first water supply valve (first water supply means) 9, and the other end of the first water supply hose 10a is connected to the water injection base part 10b, and the water injection base part 10b. Is opened in a slit shape so that water to be poured is poured into the rotating drum 5 while spreading in a substantially horizontal direction, and water is poured so as to spread into the rotating drum 5.

  One end of a second water supply hose 13a is connected to the second water supply valve (second water supply means) 11, and the other end of the second water supply hose 13a is connected to a detergent case 13c that houses the detergent 13b. One end of the third water supply hose 13d is connected to the lower part of the case 13c, and the other end of the third water supply hose 13d is connected to the water receiving tank 6 so that water can be supplied into the water receiving tank 6.

  The upper surface of the detergent case 13c is provided with a plurality of water injection holes 13e for pouring water supplied by the second water supply hose 13a into the detergent case 13c in a shower-like manner. It falls onto 13b and flows into the water receiving tank 6 together with the detergent 13b. In addition, a discharge port 34 such as a circulating water channel 28 described later is configured in the vicinity of the water receiving tank cover opening 3 a below the water receiving tank 6, and is arranged to discharge the circulating water into the rotating drum 5 and the water receiving tank 6. The washing water that has flowed down into the water receiving tank 6 is drained out of the water receiving tank 6 by opening a drain valve 43 provided in the middle of the drain pipe 42 during the draining process.

  FIG. 2 is a block diagram showing the configuration of the control device for the drum-type washing and drying machine in the embodiment of the present invention. In FIG. 2, the control device 15 includes a control unit 16, a setting unit 17, a storage unit 18, a power switching unit 19, and the like. The control means 16 constituted by a microcomputer issues a control command to the power switching means 19 using a control program stored in the storage means 18 in response to a setting input such as selection of an operation course input from the setting means 17. Output. The power switching means 19 is configured by using a switching element such as an SCR (thyristor), and the motor 7, the first and second water supply valves 9 and 11, the drain valve 43 and the like according to a control command from the control means 16. To control the operation.

  The motor 7 is composed of, for example, a direct current brushless motor, and is controlled by the control means 16 and the power switching means 19 so that the forward / reverse rotation and the rotation speed can be varied. The control unit 15 controls the cloth amount detecting means 12 for detecting the amount of water, the water level detecting means 14 for detecting the level of the washing water in the water receiving tub 6 and a series of operation steps from the washing step to the dehydration step. .

  FIG. 3 is a perspective view of the water receiving tub main body 2 of the drum type washing and drying machine in the embodiment of the present invention, and FIG. 4 is a perspective view of the water receiving tub cover 3. The configuration of the circulating water channel will be described below with reference to FIGS.

  As shown in FIG. 3, the water receiving tank main body 2 has a bottomed cylindrical shape having a water receiving tank main body opening 2a, a water receiving tank main body trunk 2b, and a water receiving tank main body bottom 2c.

  In the vicinity of the boundary between the water receiving tank main body bottom 2c and the water receiving tank main body 2b and on the inner surface of the water receiving tank main body bottom 2c, the water receiving tank main body bottom groove 2d is formed into a water receiving tank. It is provided in an arc shape substantially concentric with the main body barrel 2b. A water receiving tank main body groove lid 23 having a shape corresponding to the water receiving tank main body bottom groove 2d is formed on the water receiving tank main body bottom groove 2d via the second packing member 24 provided in the vicinity of the outer periphery thereof. The outer peripheral part is fixed by screwing with a screw 25, and a first circulating water channel 22 is formed by the water receiving tank main body bottom groove 2d and the water receiving tank main body groove lid 23.

  The water intake 20 which is one end of the first circulation water channel 22 communicates with the guide recess 21 whose bottom surface gradually changes from the bottom surface of the water receiving tank main body bottom groove 2d to the inner surface of the water receiving tank main body bottom 2c. Further, the water receiving tank main body 2 is integrally provided with a pipe-shaped second circulation water channel 26 that communicates from the water receiving tank main body opening 2a to the water receiving tank main body bottom 2c outside the water receiving tank main body 2b. The end of the second circulating water channel 26 on the water receiving tank main body bottom 2c side is in communication with the other end of the first circulating water channel 22. As will be described later, a water drain hole 64 is provided in the vicinity of the water intake 20.

  The structure of the water receiving tank cover 3 will be described with reference to FIG. The water receiving tank cover 3 has a substantially cylindrical shape having a water receiving tank cover front surface part 3b provided with a water receiving tank cover opening 3a, a water receiving tank cover body 3c, and a water receiving tank cover rear opening 3d. Is formed.

  The water receiving tank cover 3 communicates from the water receiving tank cover rear opening 3d to the water receiving tank cover front surface portion 3b at a position corresponding to the second circulation water channel 26 outside the water receiving tank cover body 3c. A third circulating water channel 27 is integrally formed.

  As the water receiving tank cover front groove 3e formed on the inner surface of the water receiving tank cover front surface portion 3b approaches the water receiving tank cover opening 3a from the outer peripheral side of the outer tank cover front surface portion 3b, it is forked in the middle. It is provided in a substantially Y shape that is divided into two. A water-receiving-tank cover groove cover 29 having a shape corresponding to the shape of the water-receiving-tank cover front-side groove 3e from the inner surface side is provided in the water-receiving-tank cover front-side groove 3e. The outer peripheral portion is screwed and fixed with a screw 31. A substantially Y-shaped fourth circulation water channel 28 is formed by the water receiving tank cover front face groove portion 3e and the water receiving tank cover groove cover 29.

  One end, which is a substantially Y-shaped lower end of the fourth circulating water channel 28, communicates with an end of the third circulating water channel 27 on the water receiving tank cover front surface portion 3 b side. The water receiving tub cover groove lid 29 is provided with a discharge port 34 for discharging washing water in the vicinity of the forked portion.

  With this configuration, as shown in FIG. 1, the discharge port 34 is in the vicinity of the outer periphery of the water receiving tank cover opening 3a and on the inner surface side of the water receiving tank cover front surface 3b, and in the rotating drum opening 5a. It is arrange | positioned so that it may face.

  Further, in a state where the water receiving tank main body 2 and the water receiving tank cover 3 are connected and fixed and supported by the main body 1 as the water receiving tank 6, the discharge port 34 is positioned in the lower half of the water receiving tank cover front surface portion 3b. However, it is provided at a position lower than the water intake 20.

  Further, when the water receiving tank body 2 and the water receiving tank cover 3 are connected and fixed, the second circulating water channel 26 and the third circulating water channel 27 are connected to the water receiving tank body 2 and the water receiving tank cover 3 described above. It is connected and fixed in a watertight manner through the first packing member 4 in the same manner as the connection and fixing method. The water receiving tank cover body 3c is provided with an exhaust port 53 described later.

  FIG. 5 is a plan view (as viewed from the right side A in FIG. 1) of the rotating drum bottom 5d of the drum type washing and drying machine according to the embodiment of the present invention, and FIG. FIG.

  The configuration of the rotating drum that performs the pump function for circulating the wash water in the circulation channel will be described below with reference to FIGS.

  The rotating drum bottom 5d is formed in a substantially concave shape by providing a flange portion 5f protruding outward on the outer periphery thereof, and the rear end portion of the rotating drum body 5c and the flange portion 5f are connected by caulking or welding or the like. is doing. Inside the flange portion 5f on the outer surface side of the rotating drum bottom portion 5d, there are provided a drum fixing member 35 made of aluminum die cast having three extending portions 35a substantially radially, and three extending portions 35a. There are provided three substantially arc box-shaped rib attachment members 37 formed along the outer periphery of the rotating drum bottom 5d.

  The rib mounting member 37 is formed in a substantially concave shape by providing an outer wall 40 and an inner wall 41 that protrude rearward on the outer periphery, and a plurality of ribs 38 that connect the outer wall 40 and the inner wall 41 are formed inside the rib mounting member 37 and the outer wall 40. The inner wall 41 is substantially the same height and is radially formed on the outer peripheral side. As shown in FIG. 5, the drum fixing member 35 is configured to fix the rotating drum 5 with a screw 39 b from the outer peripheral direction and the rib attachment member 37 with a screw 39 a from the planar direction, and further extend from the motor 7. The rotation of the motor 7 is transmitted to the rotating drum 5 by being connected at the central portion 7a.

  Next, in FIG. 7 and FIG. 8, the structure of the drying function will be described with a cross section different from FIG.

  In FIG. 7, the drying function has a heater (heating means) 50, a blower fan (blower means) 51, and a fan case 52 that accommodates the heater 50 and the blower fan 51 therein. 1 is attached. In the water receiving tank 6, an exhaust port 53 for taking in air in the water receiving tank 6 is provided in the trunk portion of the water receiving tank 6, and a hot air blowing port 54 is provided on the back surface of the water receiving tank 6. The water receiving tank 6 is integrally provided with a heat exchange member accommodating chamber 55 so that one end communicates with the exhaust port 53, and the other end of the heat exchange member accommodating chamber 55 is connected to the first bellows hose 56 and the thread. It is connected to the intake end 52a of the fan case 52 through the waste collection filter 56b.

  On the other hand, the exhaust end 52b of the fan case 52 has a second bellows hose at the other end of the back surface air passage 57 provided integrally with the water receiving tank 6 so that one end communicates with the hot air blowing port 54 of the water receiving tank 6. 58 is connected. Further, a back surface through-hole 59 is provided on the back surface of the rotating drum 5 at a position corresponding to the hot air blowing port 54, and air from the warm air blowing port 54 is blown into the rotating drum 5. .

  A plate-shaped heat exchange member 60 is attached to the heat exchange member accommodation chamber 55 so as to be inclined downward from the front side to the rear side above the exhaust port 53. The member 60 is divided into a lower heat exchange member accommodation chamber 55a and an upper heat exchange member accommodation chamber 55b, and the lower heat exchange member accommodation chamber 55a and the upper heat exchange member accommodation chamber 55b are connected to the heat exchange member via a communication port 55c. 60 is communicated with the lower end 60b side, and the path is substantially U-shaped.

  The cooling water supply valve (cooling water supply means) 61 supplies cooling water from the water supply cap 63 to the upper end portion 60a side of the heat exchange member 60 via the cooling water hose 62. The cooling water supply valve 61 and the cooling water The hose 62 and the water supply cap 63 constitute cooling water supply means. Further, in this configuration, the heat exchanging member 60 has a communication port 60e that communicates the lower heat exchanging member accommodation chamber 55a and the upper heat exchanging member accommodation chamber 55b away from the connection portion with the first bellows hose 56, The replacement member 60 is provided on the lower end 60b side.

  In FIG. 8, the exhaust port 53 has an exhaust port upper edge 53a and an exhaust port lower edge 53b. The water receiving tank 6 is provided with a straight portion 6b partially above the upper end edge 53a of the exhaust port, so that the upper end edge 53a of the exhaust port is positioned radially outward from the lower end edge 53b of the exhaust port.

  In the present embodiment, in order to position the upper end edge 53a of the exhaust port in a radially outward direction from the lower end edge 53b of the exhaust port, a straight portion is partially above the upper end edge 53a of the water receiving tank 6. Although 6b is provided, as a result, the structure is not limited to the above as long as the upper end edge 53a of the exhaust port is located at a position radially outward from the lower end edge 53b of the exhaust port.

  The operation and action of the drum type washing and drying machine configured as described above will be described below.

  The control means 16 rotates the rotating drum 5 at the first predetermined rotation speed by driving the motor 7 during the washing process or the rinsing process. This first predetermined rotation speed is the centrifugal force accompanying the rotation of the rotating drum 5. Thus, the rotation speed is set so that the laundry sticks to the inner peripheral surface of the rotary drum 5 by centrifugal force (for example, 80 r / pm). As the rotating drum 5 rotates, the washing water is stirred by the action of the pump blades of the ribs 38 provided on the outer bottom 5d of the rotating drum 5, and rotates around the boundary between the water receiving tank body 2b and the water receiving tank main body bottom 2c. Then, it is guided to the guide recess 21 and taken into the water intake 20, passes through the first to fourth circulation water channels 22, 26, 27, and 28, and rotates from the discharge port 34 configured at a position lower than the water intake 20. The drum 5 is ejected vigorously.

  Since the laundry in the rotary drum 5 is stuck to the inner peripheral surface by centrifugal force, the circulated washing water is poured into the laundry every time the rotary drum 5 rotates, and the laundry is washed by the centrifugal force in the laundry. Rinsing operation of the so-called shower rinsing process in which the detergent is removed by permeating the water.

  Further, the rotational speed of the rotating drum is equal to or lower than the first predetermined rotational speed (for example, 80 r / min), and the second predetermined rotational speed (for example, 45 r / min) at which the gravity of the laundry is superior to the sticking force due to the centrifugal force. When controlled, the washing water has a low stirring force and the amount of water discharged from the discharge port 34 is very small or there is no discharge amount. This is a stirring and rinsing process while loosening the laundry, which is the same operation as the washing by dropping.

  By combining the above shower rinsing process and the stirring rinsing process, effective washing is performed by the action of permeating and removing the detergent inside the laundry in the shower, and the action of stirring to dissolve the tangled laundry in the washing water. You can get an effect.

  9 and 10 are flowcharts of the rinsing process of the drum type washer / dryer in the embodiment of the present invention. Hereinafter, description will be made with reference to FIGS. 9 and 10 (FIG. 10 is a continuation of FIG. 9).

  In S100, when an input for starting the operation of the rinsing process is performed, the control unit 16 reads the control program from the storage unit 18, and performs a control operation in the following steps.

  In S101, the washing water containing the detergent accumulated in the water receiving tub 6 in the washing step or the like is drained before the rinsing step, and in the next S102, the second predetermined rotation speed (the inner peripheral surface of the rotating drum 5 is washed). A so-called cloth unraveling agitation is performed to unravel the tangled laundry by repeatedly turning the rotating drum left and right inversion and stopping at a rotation speed of, for example, about 45 r / min.

  In S103 and S104, the voltage applied to the motor 7 is fixed to such an extent that the rotational speed of the rotary drum 5 can be maintained at the first predetermined rotational speed (for example, 80 r / min), and the fluctuation of the rotational speed is measured in that state. Determine whether the balance is good or bad. When it is determined that the balance state is good, the process proceeds to the next intermediate dehydration step S105. When it is determined that the balance state is bad, the rotation of the rotary drum 5 is stopped, and the cloth unwinding and stirring step is returned to S102.

  In S105 and S106, in order to remove the washing water containing a large amount of detergent contained in the laundry from the laundry before the rinsing process, the rotating drum 5 is moved to a third predetermined rotation speed (for example, 900 r / min). By gradually accelerating and rotating at high speed, centrifugal dehydration is performed and water is drained from the water receiving tank 6.

  After braking and stopping in S106, in S107, the rotating drum 5 is rotated to the right at a fourth predetermined rotational speed (rotation enough for the laundry to stick to the inner peripheral surface of the rotating drum 5 due to the centrifugal force accompanying the rotation of the rotating drum 5). By gradually accelerating to a speed (for example, 80 r / min), the laundry is stuck to the inner peripheral surface of the rotating drum 5 such that the centrifugal force is greater than the gravity acting on the laundry. At this time, the fluctuation of the voltage applied to the motor 7 is measured to determine whether the balance state is good or bad. When it is determined that the balance state is good, the process proceeds to the next shower rinsing step S109. When it is determined that the balance state is poor, the rotation of the rotary drum 5 is stopped and the process proceeds to the stirring rinsing process S115.

  As described above, the washing liquid containing the detergent is dehydrated and drained from the laundry by a strong centrifugal force in the intermediate dehydration process of S105 and S106, and the balance control of S107 is performed while the laundry is firmly attached to the rotating drum 5. By performing the determination, the laundry in the state in which the balance is already controlled in S103 can be gradually accelerated to the first predetermined rotational speed while maintaining the state where the laundry is stuck to the rotary drum 5, so that the balance is maintained. This eliminates the need to redo the rinsing process and shortens the time required for the rinsing process.

  Next, in S109, the rotary drum 5 is maintained at a fourth predetermined rotation speed (for example, 80 r / min) in a well-balanced state.

  Next, in S110, water supply from the first water supply means 9 or the second water supply means 11 into the water receiving tank 6 is started. When the washing water supplied into the water receiving tub 6 reaches a certain level, the washing water is scraped up by the ribs 38, so that the washing water is separated from the boundary between the water receiving tub main body 2b and the water receiving tub main body bottom 2c. The vicinity rotates, is guided to the guide recess 21 provided in the water receiving tank main body bottom 2c, is taken into the water intake 20, and passes through the first to fourth circulation water channels 22, 26, 27, 28 from the discharge port 34. It is discharged into the rotating drum 5. As a result, a large amount of washing water can be circulated in the rotary drum 5, and this shower rinsing process is continued until the first predetermined water level is reached (S111).

  At this time, as the washing water level in the water receiving tank 6 increases, the momentum of the shower discharged from the discharge port 34 into the rotary drum 5 increases. Thereby, the washing water can be sprinkled over the laundry in a wide range.

  Next, in S112, the rotational speed of the rotary drum 5 is increased from the fourth predetermined rotational speed to the fifth predetermined rotational speed (a rotational speed higher than the first predetermined rotational speed, for example, 170 r / min), and S113. After the washing water in the water receiving tub 6 is circulated at high speed and the shower rinsing process in which the shower is applied to the laundry with a momentum from S110 is continued for a first predetermined time (for example, 5 minutes), S114 is performed. The rotary drum 5 is stopped at.

  In S112, since the rotational speed of the rotating drum 5 is high (for example, 170 r / min), the amount of water in the shower is large, the centrifugal force is large, and the force for removing the detergent by the centrifugal force from the laundry is increased, thereby enhancing the rinsing effect.

  At the same time, the rotary drum 5 is rotationally driven at the fifth predetermined rotational speed, and the rotational direction is the clockwise direction (the direction of arrow B in FIG. 8). The water between the rotating drum 5 and the water receiving tub 6 flows as shown by an arrow C by the rotation operation (heat exchange member cleaning operation) at the fifth predetermined rotation speed in the B direction.

  At this time, the exhaust port upper end edge 53a of the exhaust port 53 provided in the trunk portion of the water receiving tank 6 is positioned radially outward from the exhaust port lower end edge 53b, so that the water flows in the vicinity of the exhaust port 53 As shown by an arrow D in FIG. 8, the water led from the exhaust port upper edge 53a to the outside of the exhaust port lower edge 53b and led to the heat exchange member accommodation chamber 55 is converted into the heat exchange member 60 and the heat exchange. A state where the inner wall of the member accommodating chamber 55 is effectively lowered is obtained, and detergent bubbles adhering to the inner wall of the heat exchanging member 60 and the heat exchanging member accommodating chamber 55, lint generated and adhered from the laundry in the drying process described later, etc. Etc. can be washed away.

  And the water guide | induced to the heat exchange member accommodation chamber 55 is provided in the water-receiving-tank main body trunk | drum 2b of the water-receiving-tank body 2 vicinity of the water-receiving-tank main body 2 which comprises the water-receiving tank 6, and lower heat exchange member accommodation The water is returned to the water receiving tank 6 together with the detergent bubbles, thread waste, etc. washed away from the drain holes 64 located in the vicinity of the bottom surface of the chamber 55a. The drain hole 64 is in the vicinity of the communication port 55c that communicates the lower heat exchange member accommodation chamber 55a and the upper heat exchange member accommodation chamber 55b of the heat exchange member accommodation chamber 55 outside and below the lower end portion 60b of the heat exchange member 60. Therefore, it is desirable to provide the heat exchange member 60 below and behind the heat exchange member 60.

  In addition, since a communication port 60e for communicating the lower heat exchange member accommodation chamber 55a and the upper heat exchange member accommodation chamber 55b of the heat exchange member accommodation portion 55 is provided in a part of the side wall of the heat exchange member 60, the arrow E Thus, the inner wall of the upper heat exchange member accommodation chamber 55b can be cleaned. At this time, the communication port 60e is separated from the connection portion with the first bellows hose 56 and is provided on the lower end portion 60b side of the heat exchange member 60, so that it does not flow into the yarn waste collection filter 56b and the blower fan 51.

  Next, in S115, water is supplied from the water supply means 9 into the rotary drum 5 to a second predetermined water level that is higher than the first predetermined water level. If the water is supplied to the second predetermined water level in S116, then in S117, the rotating drum 5 is moved to the second predetermined rotating speed (the laundry stored in the rotating drum 5 is rotated in the rotating direction by the rotation of the rotating drum 5). Rotating right and resting at a rotational speed (for example, 45 r / min) that drops by gravity onto the lower inner peripheral surface of the rotating drum 5 when moved to a height position where the weight of the rotating drum 5 is higher than the inertia or centrifugal force associated with the rotation. The operation of stirring and rinsing by repeatedly rotating in the order of left rotation and pause at the second predetermined rotation speed is continued for a second predetermined time (for example, 12 minutes) in S118, and the rinsing process is ended in S119. .

  In the agitation rinsing process, the amount of washing water is set to be higher than that in the shower rinsing process, so that the laundry falls into a large amount of washing water, and the rinsing effect is further improved while removing the tangling of the laundry. Increase.

  By combining the above shower rinsing process and the stirring rinsing process, the detergent inside the laundry is permeated and removed in the shower, or the stirring rinsing action dissolves the detergent in the washing water while loosening the tangled laundry, An effective rinsing effect without rinsing unevenness can be obtained.

  After the washing process, the rinsing process, and the dehydrating process, a drying process is performed to dry the dehydrated laundry or dry wet clothes.

  In the drying process, as shown by white arrows in FIG. 7, the air blown by the rotation of the blower fan 51 is heated to a predetermined temperature by the heater 50, and passes through the second bellows hose 58 and the rear blower path 57. Air is blown into the water receiving tank 6 from the hot air blowing port 54, and further blown into the rotating drum 5 from the back surface through hole 59. The heated hot air takes moisture from the wet laundry in the rotating drum 5 in a state of being stirred, and becomes hot air having moisture. Thereafter, the hot air having moisture passes through the small drain hole 5g from the inside of the rotating drum 5, is discharged to the water receiving tank 6, and is further blown from the exhaust port 53 to the heat exchange member accommodation chamber 55.

  At this time, the cooling water supply valve 61 is in the ON state, and the cooling water falls from the water supply base 63 to the upper end portion 60a side of the heat exchange member 60, and the upper surface 60c of the heat exchange member 60 is dropped as indicated by a broken line arrow. It flows and falls from the front end portion of the lower end portion 60b of the heat exchange member 60 to the lower heat exchange member accommodation chamber 55a side. Thereafter, the cooling water is discharged into the water receiving tank 6 through a drain hole 64 provided on the bottom surface of the lower heat exchange member accommodating chamber 55a and communicating with the water receiving tank 6, and is discharged outside the apparatus through the drainage passage 42. The

  The wet warm air sent from the exhaust port 53 into the lower heat exchange member accommodation chamber 55a of the heat exchange member accommodation chamber 55 first contacts the lower surface 60d of the heat exchange member 60. At this time, since the lower surface 60d of the heat exchange member 60 is also cooled by the cooling water flowing through the upper surface 60c of the heat exchange member 60, heat exchange is performed between the wet warm air and the lower surface 60d of the heat exchange member 60. The action is performed, and the wet warm air is dehumidified (first dehumidifying process).

  Further, the wet warm air is sent to the upper heat exchange member accommodation chamber 55b on the lower end portion 60b side of the heat exchange member 60 through the communication port 55c. The cooling water falling from the lower end portion 60b is rolled up and scattered, heat exchange is performed with the scattered cooling water, and the moist hot air is dehumidified (second dehumidifying process).

  Thereafter, the wet warm air is sent to the upper heat exchange member accommodation chamber 55b, and comes into contact with the upper surface 60c of the heat exchange member 60 and the cooling water flowing therethrough. At this time, the direction in which the cooling water flows and the direction in which the wet warm air flows are opposed to each other. Thereby, the wet warm air is subjected to heat exchange action with the upper surface 60c of the heat exchange member 60 and the cooling water flowing therethrough, and the wet warm air is dehumidified (third dehumidification process).

  In this way, the humid hot air that has passed through the three dehumidifying processes, the first dehumidifying process, the second dehumidifying process, and the third dehumidifying process, is efficiently cooled and dehumidified air, and the first bellows hose 56, the lint collection The air is sent from the intake end 52 a of the fan case 52 into the fan case 52 through the filter 56 b and reaches the blower fan 51.

  Thereafter, the laundry is gradually dried by the air circulation as described above, and the drying process is finished after a predetermined time has elapsed or when the laundry reaches a predetermined dryness.

  In such a drying process, the yarn waste generated and attached from the laundry may adhere to the inner wall of the heat exchange member 60 or the heat exchange member accommodation chamber 55 before being collected by the yarn waste collection filter 56b. Since the washing is performed by the heat exchange member washing operation in the above-described rinsing process, it is possible to prevent the yarn waste and the like from accumulating on the inner walls of the heat exchange member 60 and the heat exchange member accommodation chamber 55.

  In the present embodiment, in the shower rinsing process, the rotary drum 5 is increased from the fourth predetermined rotation speed (for example, 80 r / min) to the fifth predetermined rotation speed (for example, 170 r / min). When the heat exchange member cleaning operation can be performed without increasing the rotation speed, the rotation speed need not be increased halfway.

  The shape of the rib 38 is not limited to the shape described in the present embodiment, and the rib 38 is not provided if the washing water can be circulated by the rotation of the rotating drum 5 without the rib 38 being provided. Also good.

  Further, the water intake 20, the first to fourth circulation water channels 22, 26, 27, 28 and the discharge port 34 are not limited to the configuration described in the present embodiment, and the water intake 20 is the washing water in the water receiving tub 6. The first to fourth circulation channels 22, 26, 27, and 28 can flow the wash water taken from the water intake 20 to the discharge port 34, and the discharge port 34 is the wash taken from the water intake 20. The present embodiment is not limited to this embodiment as long as water can be discharged into the rotating drum 5.

  In the present embodiment, the exhaust port upper edge 53a is positioned radially outward from the exhaust port lower edge 53b. However, the exhaust port lower edge 53b is positioned radially outward from the exhaust port upper edge 53a. Thus, even if the rotation directions in the bubble generation operation and the heat exchange member cleaning operation are set in opposite directions, the same effect can be obtained.

  As described above, the drum type washing and drying machine of the present invention can improve the drying function, can prevent the drying function from being deteriorated due to adhesion and accumulation of yarn waste, etc. Since performance can be improved and rinsing irregularities can be reduced, it is possible to keep the manufacturing cost low without reducing productivity. It can be widely applied to various devices and apparatuses that perform the above.

The longitudinal cross-sectional view of the drum type washing-drying machine in Embodiment 1 of this invention The block diagram which shows the structure of the control apparatus of the drum type washing-drying machine Perspective view of the water receiving tank body of the drum type washing and drying machine Perspective view of water receiving tank cover of the drum type washing and drying machine A plan view of the bottom of the rotary drum of the drum type washing and drying machine (viewed from the right side A in FIG. 1) Cross-sectional view of the main part of the rotating drum of the drum type washing and drying machine Vertical view of different parts of the drum type washer / dryer Diameter direction sectional view of the water receiving tank and rotating drum of the drum type washing and drying machine Flow chart of the rinsing process of the drum type washing and drying machine Flow chart of the rinsing process of the drum type washing and drying machine Perspective view of a conventional drum type washer / dryer

Explanation of symbols

1 Body (Washing and drying machine body)
5 Rotating drum 6 Water receiving tank 7 Motor 9 First water supply means (water supply means)
11 Second water supply means (water supply means)
16 Control means 20 Water intake
22 First circulating water channel 26 Second circulating water channel 27 Third circulating water channel 28 Fourth circulating water channel 34 Discharge port 43 Drain valve (drainage means)
50 Heater (heating means)
51 Blower fan (Blower unit)
53 Exhaust port 55 Heat exchange member accommodation chamber (circulation air passage)
55a Lower heat exchange member accommodation chamber (lower accommodation chamber)
55b Upper heat exchange member accommodation chamber (upper accommodation chamber)
56 1st bellows hose (circulation air passage)
57 Rear ventilation path (circulation air path)
58 Second bellows hose (circulation airway)
60 Heat exchange member 61 Cooling water supply valve (cooling water supply means)

Claims (6)

A bottomed cylindrical water receiving tub enclosed in the main body of the washing machine and having a first opening for entering and exiting clothes, and a second opening rotatably provided in the water receiving tub and corresponding to the first opening. A bottomed cylindrical rotary drum having an opening and a horizontal axis or a rotary shaft inclined from the horizontal direction, a motor for rotationally driving the rotary drum, water supply means for supplying water into the water receiving tank, and the water receiver Drainage means for draining the washing water in the tub, blower means for sending wind into the rotary drum, and heating for heating the wind blown by the blower means located between the blower means and the rotary drum Dehumidifying means comprising a means, a heat exchange member and a cooling water supply means for supplying cooling water to the heat exchange member, and the dehumidifying means for discharging the air discharged from the rotating drum between the water receiving tank and the rotating drum, Water through the blowing means and heating means A circulation air passage that blows air into the tank, a water intake port that is provided in the water receiving tub and rotates in the water receiving tub as the rotating drum rotates, and one end of the water intake port communicates with each other. A circulating water channel, a discharge port that communicates with the other end of the circulating water channel and discharges washing water into the rotating drum, and controls the motor, water supply means, drainage means, air blowing means, heating means, cooling water supply means, etc. And a control means for performing each process such as washing, rinsing, dehydration, etc., and a heat exchange member accommodation chamber containing the heat exchange member is provided adjacent to the upper part of the peripheral surface of the water receiving tank, and the water A drum-type washing and drying machine provided with an exhaust port communicating with the heat exchange member accommodation chamber on a side peripheral wall of a receiving tank. The drum type washing and drying machine according to claim 1, wherein either one of the upper end edge and the lower end edge of the exhaust port is positioned radially outward with respect to the other. The drum type washing and drying machine according to claim 1 or 2, wherein the heat exchange member accommodation chamber is formed integrally with the water receiving tank. 2. The heat exchange member accommodation chamber is configured such that a heat exchange member is provided above an exhaust port, and the heat exchange member is divided into an upper accommodation chamber and a lower accommodation chamber to form a substantially U-shaped path. The drum type washing / drying machine according to any one of -3. The drum-type washing / drying machine according to claim 4, wherein a communication port for communicating the upper storage chamber and the lower storage chamber of the heat exchange member storage chamber is provided in a part of the side wall of the heat exchange member. The control means controls the water supply means at least in the rinsing process to rinse the laundry by centrifugal force by rotating the rotary drum at a predetermined rotation speed by controlling the water supply means to supply water to a predetermined water level in the water receiving tub. A shower rinsing process by sticking to the inner peripheral wall of the rotating drum and discharging washing water from the discharge port and a heat exchange member cleaning operation are performed simultaneously, and the rotating direction of the rotating drum is the upper edge of the exhaust port. The drum type washing / drying machine according to any one of claims 1 to 5, wherein an end edge side located radially outside of a lower end edge is an upstream side of a flow of water.